Letter | Published:

Resistive Thin Films in Rectangular Waveguide

Nature volume 212, pages 186187 (08 October 1966) | Download Citation

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Abstract

A WIDELY used form of microwave attenuator consists of a length of rectangular waveguide, normally supporting the propagation of the H01 mode, and containing a dielectric vane which can be moved across the guide with its plane lying always parallel to the planes containing the narrow walls of the guide. A uniform resistive film is applied to one face of the vane, and negligible attenuation is obtained when this face lies close to a narrow wall. The attenuation increases as the vane is moved towards the centre of the waveguide1,2. The behaviour of the device has been studied for some time in this laboratory.

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References

  1. 1.

    Montgomery, C. G., (ed.), Technique of Microwave Measurements (McGraw-Hill, 1947).

  2. 2.

    , Proc. Inst. Elect. Eng., 109 B, Suppl. 23, 791 (1962).

  3. 3.

    , Principles and Applications of Waveguide Transmission (Van Nostrand, 1950).

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Author information

Affiliations

  1. Decca Radar, Ltd., Walton-on-Thames, Surrey.

    • D. A. J. WALLIKER

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  1. Search for D. A. J. WALLIKER in:

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DOI

https://doi.org/10.1038/212186a0

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